Merge p3yk branch with the trunk up to revision 45595. This breaks a fair

number of tests, all because of the codecs/_multibytecodecs issue described
here (it's not a Py3K issue, just something Py3K discovers):
http://mail.python.org/pipermail/python-dev/2006-April/064051.html

Hye-Shik Chang promised to look for a fix, so no need to fix it here. The
tests that are expected to break are:

test_codecencodings_cn
test_codecencodings_hk
test_codecencodings_jp
test_codecencodings_kr
test_codecencodings_tw
test_codecs
test_multibytecodec

This merge fixes an actual test failure (test_weakref) in this branch,
though, so I believe merging is the right thing to do anyway.

Tools/unicode/gencjkcodecs.py

@@ -0,0 +1,68 @@
+import os, string
+
+codecs = {
+    'cn': ('gb2312', 'gbk', 'gb18030', 'hz'),
+    'tw': ('big5', 'cp950'),
+    'hk': ('big5hkscs',),
+    'jp': ('cp932', 'shift_jis', 'euc_jp', 'euc_jisx0213', 'shift_jisx0213',
+           'euc_jis_2004', 'shift_jis_2004'),
+    'kr': ('cp949', 'euc_kr', 'johab'),
+    'iso2022': ('iso2022_jp', 'iso2022_jp_1', 'iso2022_jp_2',
+                'iso2022_jp_2004', 'iso2022_jp_3', 'iso2022_jp_ext',
+                'iso2022_kr'),
+}
+
+TEMPLATE = string.Template("""\
+#
+# $encoding.py: Python Unicode Codec for $ENCODING
+#
+# Written by Hye-Shik Chang <perky@FreeBSD.org>
+#
+
+import _codecs_$owner, codecs
+import _multibytecodec as mbc
+
+codec = _codecs_$owner.getcodec('$encoding')
+
+class Codec(codecs.Codec):
+    encode = codec.encode
+    decode = codec.decode
+
+class IncrementalEncoder(mbc.MultibyteIncrementalEncoder,
+                         codecs.IncrementalEncoder):
+    codec = codec
+
+class IncrementalDecoder(mbc.MultibyteIncrementalDecoder,
+                         codecs.IncrementalDecoder):
+    codec = codec
+
+class StreamReader(Codec, mbc.MultibyteStreamReader, codecs.StreamReader):
+    codec = codec
+
+class StreamWriter(Codec, mbc.MultibyteStreamWriter, codecs.StreamWriter):
+    codec = codec
+
+def getregentry():
+    return codecs.CodecInfo(
+        name='$encoding',
+        encode=Codec().encode,
+        decode=Codec().decode,
+        incrementalencoder=IncrementalEncoder,
+        incrementaldecoder=IncrementalDecoder,
+        streamreader=StreamReader,
+        streamwriter=StreamWriter,
+    )
+""")
+
+def gencodecs(prefix):
+    for loc, encodings in codecs.iteritems():
+        for enc in encodings:
+            code = TEMPLATE.substitute(ENCODING=enc.upper(),
+                                       encoding=enc.lower(),
+                                       owner=loc)
+            codecpath = os.path.join(prefix, enc + '.py')
+            open(codecpath, 'w').write(code)
+
+if __name__ == '__main__':
+    import sys
+    gencodecs(sys.argv[1])